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<head>
    <meta charset="UTF-8">
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    <title>Document</title>
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    <script type="module">
        import heapSort from './heapSort.js';

        const array = [7,5,20,16,4,1,19,13,8];
        console.log('Before sorting: ', array);
        console.log('After sorting: ', heapSort(array));
    </script>
</body>
</html>